Merge pull request #65 from aplanas/master

Add Travis build image to the documentation
Fix project metadata to be consistent
Test for get_request_id_for_package
Test get_package_for_request_id as well
Support for DELETE

Adding to the framework support for DELETE as well, as it happens from time to
time in API as well.
Testing removing package from project
Merge pull request #66 from miska/master

Few more tests
Add initial coveralls support
Add coverage badge in the documentation
Change coverage URL
Fix after_success section
Ignore non related packages
Ignore coveralls.yml, that store the private key.